SQLyog copy field value tips

background:

Daily work, often need to, for example, a copy of the ID value, ID card ID value query data with SQLyog client. And a comma or semicolon interval.

For example, we need a comma id value interval.

According to the following operation on it.

 

 

Questions:

If a string, we need to 'aa', 'bb', 'cc' + quotation marks separated by commas, how does it work?